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| Research advances in the mechanisms of protecting animals against influenza by probiotics |
Meiqing HAN1( ),Di WANG1,Xianqi PENG1,Yan LI1,2() |
1.Institute of Preventive Veterinary Medicine/Zhejiang Provincial Key Laboratory of Preventive Veterinary Medicine, College of Animal Sciences, Zhejiang University, Hangzhou 310058, Zhejiang, China
2.Hainan Institute of Zhejiang University, Sanya 572025, Hainan, China |
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Abstract Influenza is an important zoonotic disease. The highly pathogenic avian influenza not only brings enormous losses to China’s livestock breeding industry but also seriously threatens the safety of public health. The ability of influenza viruses to recombine in swine and spread across species barriers poses significant challenges for influenza prevention. Due to the rapid mutation of influenza viruses, the differences between prevalent viruses and vaccine strains reduce the vaccine efficacy. It is necessary to improve the host’s immunity to influenza viruses. Probiotics regulate the balance of intestinal microbiota and promote body health, which is beneficial for protecting animal against influenza viruses. This paper reviewed the mechanisms of anti-influenza virus action of probiotics in animals. The mechanisms include direct or indirect interference with virus attacks by balancing the composition of intestinal flora, regulating the mucosal barrier function of body, and enhancing or suppressing Toll-like receptor-related molecular signaling pathways. This study provides scientific evidence for understanding the mechanisms by which different strains of probiotics combat influenza and for developing more effective anti-influenza strategies.
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Received: 18 July 2022
Published: 25 December 2023
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Corresponding Authors:
Yan LI
E-mail: xxhan0818@qq.com;yanli3@zju.edu.cn
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益生菌帮助动物抵御流感的机制研究进展
流感是一种重要的人畜共患病，高致病性禽流感不仅给我国养殖业带来巨大损失，还严重威胁公共卫生安全。流感病毒能够在猪体内重组并跨越物种屏障进行传播，这给预防流感带来巨大挑战。由于流感病毒的变异速度快，流行的病毒株和疫苗株之间的差异会降低疫苗的效力，因此增强机体对流感病毒的抵抗力显得尤为重要。益生菌具有调节肠道微生物平衡、促进机体健康的作用，对动物机体抵抗流感病毒是有益的。本文综述了益生菌在动物体内抗流感病毒的作用机制，阐明了益生菌可以通过平衡动物肠道菌群组成、调节机体黏膜屏障功能、增强或抑制Toll样受体相关分子信号通路等方式直接或间接干扰病毒的侵袭，为了解不同菌种发挥抗流感的相应机制及开发更有效的抗流感策略提供了科学依据。
关键词：
流感病毒,
益生菌,
免疫,
“肠-肺轴”
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